/Engine/Source/Runtime/GeometryCore/Public/Operations/MeshBoolean.h
MeshBoolean  perform a boolean operation on two input meshes.
class FMeshBoolean
TSet< int32 >
AllNewEdges
All edges created by mesh boolean algorithm. Only populated if bTrackAllNewEdges = true
bool
bCollapseDegenerateEdgesOnCut
Whether to do additional processing to try to remove degenerate edges
bool
bPopulateSecondMeshGroupMap
When doing an operation that merges two meshes (Union, Difference, Intersect) and bPopulateSecondMeshGroupMap is true, we populate a map from group ID's in the second mesh to group ID's in the result.
bool
bPreserveOverlayUVs
Prevent simplification from distorting overlay UVs
bool
bPreserveTriangleGroups
Prevent simplification from distorting triangle groups
bool
bPreserveVertexNormals
Prevent simplification from distorting vertex normals
bool
bPreserveVertexUVs
Prevent simplification from distorting vertex UVs
bool
bPutResultInInputSpace
Put the Result mesh in the same space as the input.
bool
bSimplifyAlongNewEdges
Control whether we attempt to auto-simplify the small planar triangles that the boolean operation tends to generate
bool
bTrackAllNewEdges
Control whether new edges should be tracked
bool
bWeldSharedEdges
Weld newly-created cut edges where the input meshes meet.
TArray< int >
CreatedBoundaryEdges
Boundary edges created by the mesh boolean algorithm failing to cleanly weld (doesn't include boundaries that already existed in source meshes)
double
DegenerateEdgeTolFactor
Tolerance factor (multiplied by SnapTolerance) for removing short edges created by the cutting process; should be no more than 2
constFDynamicM...
Meshes
Inputs
float
NormalDistortTolerance
When preserving normals, sets maximum allowed change in normals from collapsing an edge, measured at the removed vertex in degrees
EBooleanOp
Operation
int
PreserveUVsOnlyForMesh
If > -1, then only preserve the UVs of one of the input meshes.
FProgressCancel...
Progress
Set this to be able to cancel running operation
FDynamicMesh3&...
Result
An existing mesh, to be filled with the boolean result.
FTransformSRT3d
ResultTransform
OutputTransform taking the result mesh back to the original space of the inputs
FIndexMapi
SecondMeshGroupMap
double
SimplificationAngleTolerance
Simplification-specific settings (only relevant if bSimplifyAlongNewEdges==true):Degrees of deviation from coplanar that we will still simplify
double
SnapTolerance
Tolerance distance for considering a point to be on a vertex or edge, especially during mesh-mesh cutting
constFTransfor...
Transforms
double
TryToImproveTriQualityThreshold
If triangle quality (aspect ratio) is worse than this threshold, only simplify in ways that improve quality.
float
UVDistortTolerance
When preserving UVs, sets maximum allowed change in UV coordinates from collapsing an edge, measured at the removed vertex
double
WindingThreshold
Threshold to determine whether triangle in one mesh is inside or outside of the other